61221380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{278279}}^1$

素因数の和:278299

約数の個数: 24

約数和(自身を含む): 140253120

約数和(自身を除く): 79031740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 278279, 556558, 1113116, 1391395, 2782790, 3061069, 5565580, 6122138, 12244276, 15305345, 30610690, 61221380]

約数ペア:

[(1, 61221380), (2, 30610690), (4, 15305345), (5, 12244276), (10, 6122138), (11, 5565580), (20, 3061069), (22, 2782790), (44, 1391395), (55, 1113116), (110, 556558), (220, 278279)]